diff --git a/ext/mpg123/gstmpg123audiodec.h b/ext/mpg123/gstmpg123audiodec.h
index b865c417ae..e837a56b0c 100644
--- a/ext/mpg123/gstmpg123audiodec.h
+++ b/ext/mpg123/gstmpg123audiodec.h
@@ -19,18 +19,6 @@
 #ifndef __GST_MPG123_AUDIO_DEC_H__
 #define __GST_MPG123_AUDIO_DEC_H__
 
-/* This is what the visual studio build in mpg123 does before including the
- * original header file. Without this we get syntax errors in the
- * replace_reader function declarations because it doesn't know ssize_t etc.
- * It doesn't realy matter for us if the ssize_t typedef here is correct. */
-#ifdef _MSC_VER
-#include <tchar.h>
-#include <stdlib.h>
-#include <sys/types.h>
-typedef long ssize_t;
-#include <stdint.h>
-#endif
-
 #include <gst/gst.h>
 #include <gst/audio/gstaudiodecoder.h>
 #include <mpg123.h>